Energy-resolved computer tomography

In coherent scatter computed tomography, the scatter angle from object points (31, 32, 33, 34, 35), which are located on a line (36) perpendicular to the central beam (45) in the plane of rotation, varies as a non-linear function of the fan-angle of the detector row (37). According to an exemplary e...

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Bibliographic Details
Main Author GRASS MICHAEL,KOEHLER THOMAS
Format Patent
LanguageEnglish
Published 17.10.2007
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
TESTING
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Summary:In coherent scatter computed tomography, the scatter angle from object points (31, 32, 33, 34, 35), which are located on a line (36) perpendicular to the central beam (45) in the plane of rotation, varies as a non-linear function of the fan-angle of the detector row (37). According to an exemplary embodiment of the present invention, a single-line energy-resolved detector for CSCT data acquisition is used, which measures scattered photons originating from object points on a circular arc under the same scatter angle. This automatically leads to a Cartesian q- sampling on a parallel-rebinned detector. Advantageously, this may avoid q- interpolation prior to parallel-rebinned filtered back-projection reconstruction.
Bibliography:Application Number: CN2005838491